KR20120073699A

KR20120073699A - Bucket for excavator with improved lug assembly

Info

Publication number: KR20120073699A
Application number: KR1020100135534A
Authority: KR
Inventors: 장승구
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2012-07-05

Abstract

The present invention relates to an excavator bucket, and more particularly, even if the diameter of the pin or the distance between the pins has to be changed, an improved lug assembly can be applied to one bucket without having to manufacture a bucket separately. An excavator bucket having a lug assembly.
Excavator bucket having an improved lug assembly according to the present invention, the bucket body having a pair of first lugs are formed so as to project upward on the top and spaced apart from each other at a predetermined interval, formed in a predetermined length and at a predetermined interval from each other A lug assembly having a plurality of pins spaced apart from each other and a pair of second lugs fixed together at both ends of the pin, and inserted and fixed between the first lugs so that the outer surface of the second lugs abuts against the inner surface of the first lugs. Include.

Description

Bucket for excavator with improved lug assembly}

The present invention relates to an excavator bucket, and more particularly, to an excavator bucket having an improved lug assembly provided for engagement with an arm.

The excavator is equipped with a bucket for digging or mowing, which is fastened to the arm of the excavator.

1 shows a conventional bucket. As shown, the conventional bucket is a body (1), a plurality of lugs (2) formed on top of the body (1), each having a plurality of holes, and holes formed at both ends of the lugs (2) And a pin 3 inserted into and fixed to the nut 4.

At the end of the arm (not shown) of the excavator, a hole for fastening with the bucket is formed corresponding to the hole formed in the lug 2.

In order to fasten the bucket and the arm, the bucket is brought into close contact with the arm and the control rod between the lugs 2, and then the pin 3 is inserted into the lug 2 and the hole formed in the arm.

However, the conventional bucket has a problem that it is not easy to insert or pull out the pin (3).

In general, there are various types of excavator buckets depending on the capacity (capacity) and depth (width), the diameter of the pins or the distance between the pins may vary depending on the specifications.

However, since the bucket has a lug of one specification for each bucket, the bucket cannot be variously applied when a change or adjustment of the diameter of the pin or the distance between the pins is required. This provided bucket had to be manufactured separately. In other words, the majority of buckets had to be manufactured and managed according to various specifications according to the difference in pins.

As a result, the conventional bucket was not able to make the lug common, and accordingly, there was a problem in manufacturing and design utility degradation, inventory management.

The present invention has been made to solve the above-mentioned problems, even if the diameter of the pins or the distance between the pins should be improved, it is possible to apply the lug assembly of various specifications to one bucket without having to make a separate bucket It is an object to provide an bucket for an excavator having a lug assembly.

An object of the present invention described above, a bucket body having a pair of first lugs are formed to protrude upwardly and spaced apart from each other at a predetermined interval; and a plurality of pins formed in a predetermined length and spaced apart from each other at a predetermined interval; A lug assembly fixed to both ends of the pin and having a pair of second lugs, the lug assembly being inserted and fixed between the first lugs so that an outer surface of the second lugs abuts against an inner surface of the first lug; By providing an bucket for an excavator having an improved lug assembly.

According to a preferred feature of the invention, the lug assembly may be fixed to the bucket body by welding the second lug to the first lug of the bucket body.

According to another preferred feature of the invention, the first lug is formed with a plurality of holes in the longitudinal direction, the lug assembly can be fixed to the bucket body by the second lug is attached to the first lug by filling welding have.

According to another preferred feature of the invention, the lug assembly may be fixed to the bucket body by bolting the second lug to the first lug.

According to the present invention, an excavator bucket having an improved lug assembly can be applied to a lug assembly with pins of a required specification between the first lugs formed on the bucket body, so that the pin diameter or the distance between the pins can be applied. Even if they have to be different, you only need to build the lug assembly without having to build a separate bucket, which increases design and manageability.

1 is a perspective view of a bucket for a conventional excavator.
2 is a perspective view of an excavator bucket with an improved lug assembly in accordance with one embodiment of the present invention.
3 is an exploded perspective view of the excavator bucket shown in FIG.
4 is a perspective view of an excavator bucket having an improved lug assembly according to another embodiment of the present invention.
5 is a perspective view of an excavator bucket with an improved lug assembly according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything. In describing various embodiments of the present invention, the same reference numerals will be used to refer to elements having the same technical features.

2 and 3, an excavator bucket having an improved lug assembly according to an embodiment of the present invention will be described. As shown, the excavator bucket includes a bucket body 10 and a lug assembly 20.

The bucket body 10 has a plurality of teeth (not shown) and has a pair of first lugs 12 formed to protrude upwards on the top. The first lug 12 is provided so that the lug assembly 20 is fixed to the bucket body 10, and the pair is spaced apart from each other at a predetermined interval. The first lug 12 may be integrally formed at the time of manufacturing the bucket body 10 or may be attached to the bucket body 10 by welding or the like after separately manufacturing the first lug 12.

The lug assembly 20 is fixed to the bucket body 10 and serves to connect the bucket body 10 to an arm (not shown). The lug assembly 20 is inserted and fixed between the first lugs 12 of the bucket body 10 and has a plurality of pins 22 and a pair of second lugs 24.

Herein, the pins 22 of the lug assembly 20 are formed to have a length corresponding to the distance between the first lugs 12 of the bucket body 10 and are spaced apart from each other at predetermined intervals. And the second lug 24 is made of a pair, each is fixed to both ends of the pin (22). Accordingly, as shown in FIG. 3, the lug assembly 20 forms one unit by being fixed and integrated with the pin 22 and the second lug 24.

In addition, the lug assembly 20 may be provided in various specifications according to the distance between the pins 22 and / or the diameter of the pins 22. Therefore, since only the lug assembly can be manufactured separately and fixed to the bucket body according to the required specification, the problem of having to manufacture the bucket itself separately can not be solved because conventional lugs cannot be made common.

Fixing the lug assembly 20 to the bucket body 10 may be by welding. That is, the lug assembly 20 is inserted between the first lug 12 so that the outer surface of the second lug 24 abuts the inner surface of the first lug 12 of the bucket body 10, in this case the second lug This means that the lug assembly 20 is fixed to the bucket body 10 by welding along the edge where the 24 and the first lug 12 abut.

In this case, it is preferable that the second lug 24 of the lug assembly 20 has a shape substantially the same as that of the first lug 12 of the bucket body 10 for ease of welding and firm fixing.

Eventually, the bucket body 10 is manufactured to the same specification, and the lug assembly 20 is manufactured to various specifications according to the distance between the pins 22 and / or the diameter of the pins 22, and then the lugs to meet the required specifications. By fixing the assembly 20 to the bucket body 10, it is possible to appropriately cope with the specification change.

Excavator buckets shown in FIGS. 4 and 5 are different from the buckets for excavators shown in FIGS. 2 and 3 in a fixed manner. Each excavator bucket is identical in that it includes a bucket body 10 having a first lug 12 and a lug assembly 20 having a plurality of pins 22 and a plurality of second lugs 24. There is a difference in the manner in which the lug assembly 20 is fixed to the bucket body 10.

First, the excavator bucket shown in FIG. 4 uses fill welding. That is, a plurality of holes 14 are formed in the first lug 12 of the bucket body 10, and the lug assembly 20 has a second lug 24 of the first lug 12 of the bucket body 10. It is inserted into abutment and then fixed to the bucket body 10 by filling welding through the hole 14.

And the excavator bucket shown in Figure 5 is to use the bolted. That is, a fastening hole (not shown) is formed in each of the first lug 12 of the bucket body 10 and the second lug 24 of the lug assembly 20, and the lug assembly 20 includes a second lug ( 24 is inserted to abut the first lug 12 of the bucket body 10 and then fixed to the bucket body 10 by bolting through a fastening hole. Since the excavator bucket is by bolting, there is an advantage in that the lug assembly 20 is easily detached.

On the other hand, so that the lug assembly 20 is firmly fixed to the bucket body 10, welding, filling welding, bolting may be applied all at once by the fixing method.

10: bucket body
12: first lug
20: lug assembly
22: pin
24: second lug

Claims

A bucket body having a pair of first lugs formed to protrude upwardly and spaced apart from each other at predetermined intervals; And
A plurality of pins formed to a predetermined length and spaced apart from each other at a predetermined interval, and a pair of second lugs fixed to both ends of the pins to form an integrated body, and an outer surface of the second lug is formed on an inner surface of the first lug. And a lug assembly inserted and fixed between the first lugs to abut.

The method according to claim 1,
And the lug assembly is fixed to the bucket body by welding the second lug to the first lug of the bucket body.

The method according to claim 1,
The first lug is formed with a plurality of holes in the longitudinal direction, the lug assembly has an improved lug assembly, characterized in that the second lug is fixed to the bucket body by filling welding to the first lug. Excavator buckets.

The method according to claim 1,
And the lug assembly is secured to the bucket body by bolting the second lug to the first lug.